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Influence of twinning and grain structure on the critical transport current density of YBa2Cu3O7-δ

✍ Scribed by S. Iwama; P.J. King; D.S. Misra; W.B. Roys; D.N. Matthews; K.N.R. Taylor

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
260 KB
Volume
28
Category
Article
ISSN
0011-2275

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✦ Synopsis

Optmal mmroscopy studies have been camed out to study the effect of twinning on the superconducting properties of bulk YBa2Cu307 ~ (1 2 3) using a range of samples which have been prepared under different condtttons of temperature and pressure m the authors' laboratories and elsewhere Although the preparation temperature influences both the mean gram s=ze and the mc=dence of twmmng, cr=tmal transport current density measurements made at 77 K on each sample are found to be uncorrelated wtth the mc=dence of twin boundanes m the samples The tmphcatmns of this finding are discussed

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